BITE Test of the DME 1 Inoperative

TASK 34-51-00-810-817-A
BITE Test of the DME 1 Inoperative

1. Possible Causes

INTRG-DME, 1 [2SD1]
LGCIU-1 [5GA1]
wiring of the GND/AIR LOGIC discrete from the DME interrogator 1 (2SD1) to the LGCIU 1 (5GA1)

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 32-31-71-000-001	Removal of the LGCIU
AMM 32-31-71-400-001	Installation of the LGCIU
AMM 34-51-00-740-002	BITE Test of the DME
ASM 345101
AMM 34-51-33-000-001	Removal of the DME Interrogator
AMM 34-51-33-400-001	Installation of the DME Interrogator

3. Fault Confirmation
Subtask 34-51-00-740-074-A

A. Test
(1) Not applicable, the fault is evident.

4. Fault Isolation
Subtask 34-51-00-810-072-A

A. If the BITE test of the DME 1 cannot be started on the MCDU:

(1) If the fault continues:

(a) If the fault continues:

do a check and repair the wiring of the GND/AIR LOGIC discrete from the DME interrogator 1 (2SD1) to the LGCIU 1 (5GA1) ASM 345101.

Subtask 34-51-00-740-075-A

B. Do the BITE test of the DME AMM 34-51-00-740-002.

[Rev.8 from Aug 2018] 2026.04.04 04:33:20 UTC